Fumigator.



UNITED STATES PATENT OFFICE.

LUDWIG A. THIELE, or HOLLAND, MICHIGAN.

FUMIGA'I'QR.

To all whom it may concern:

Be it known that I, LUDWIG A. THIELE, a citizen of the United States of America, residing at Holland, in the county of Ottawa and State of Michigam'have invented certain new and useful Improvements in Fumigators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in fumigators and its object is to provide a device that may be conveniently assembled for storage and shipment, andquickly re-arranged for use, and to provide the same with various new and useful features hereinaftermore fully described and particularly pointed out in the claims.

The invention consists essentially of a cup to contain the fumigating material, a

- stand to support the cup when in use and adapted to assemble within. the cup when out of use and a base to support the stand and to contain suitable fuel, the support and base being provided with detachable connections and also with a marginal channel to receive the edge of the cup and to retain s aling material when the device is packed or assembled for storage or shipment. It also consists in various details such as an improved form of wick for burning the fuel, a circulator to assist in vaporizing the fumigating material, and in various details of structure and arrangement, as will more fully appear by reference to the accompanying drawings in which Figure l is a side elevation of a. device embodying my invention asit appears when arranged for use. Fig. 2 a central vertical section of the same. Fig. 3 an elevation of the device when assembled for storage or transportation. Fig. 4 a central vertical section of the same and Fig. 5 a detail of the improved wick.

Like numbers refer to like parts in all of the figures.

1 represents a cup of' thin metal providcd at intervals with circlni'ifcrcntial beads to indicate the quantity contained in the cup whereby the same may be useful otherwise than for a fumigator.

3 is a truncated conical support, preferably of sheet metal adapted at its upper end to receive the lower end of the cup and having its upper end adapted to engage the Specification of Letters Patent. Application filed September 13, 1912. Serial 110,720,240.

Patented Apr. 28,1914.

lower bead 2 on the cup and support the same, this. support to enable the heater to burn freely being provided with several perforations 4 of any convenient form. The lower end of this support is curved outward and upward forming a circular channel as at 6, adapted to receive the upper edge of the cup when the device is assembled for storage or transportation. j

A base 7 is provided preferably in the form of a shallow vessel having its margin turned upward forming a concave channel to fit outside the margin 6 of the support so that when awembled for storage or transportation the margin 6 of the support rests within the margin 8 of the base and the edge of the cup is within the margin 6 and the channel may be filled to seal the contents by means of any suitable wax or sealing material. The base is secured to the bottom of the support by a slightly inward turned edge 9 which also serves to retain the sealing material in the channel.

10 is a wick formed of two rectangular pieces of suitable material, preferably some form of paste board such as strawboard,

each piece being recessed half way through from one side to the center thereof, as at 15, to receive the connecting portion of the other piece whereby a cruciform wick is formed. This wick is placed centrally in the base with its members extending vertically and a suitable quantity of combustible material such as, stearin, wax, para-flirt or other like material 'is melted and poured upon the base in suitable quantity which partially covers the wick and maintains the same in place when cool as shown at 13.

A suitable quantity of fumigating material thatlwill form a solid when cooled is melted and poured into the cup and centrally therein is inserted a circulating tube 11, the upper part being tubular and the lower part recessed asat 12, and inserted in the fumigatin material. r

When assembled as shown injFigs. 3 and 4 this device is sealed and consists of an air tight package containing the necessary inmi gating material and fuel. It thus forms a very convenient and practical article of merchandise, and when the seal is broken and the device assembled as in Figs. 1 and 2 it is all ready for use by merely igniting the wick 10, the flame from which will then melt the fuel 13 andthus supply the wick with liquid fuel untilthe same has been in i COllSllIl'lCtl. The flameahove the Wick firststrikes on the concave bottom 01' the cup and thence spreads laterally and escapes through the openings 4-. These openings also serve :For conveniently inserting a match to light the wick 10. \Vhen the fumigating material. 1 L lmgins to boil the circulation tube 11 permits the material to pass upward through the tube overflowing at its upper end and thence downward in a circuit thus aiding the escape of the generated vapors, and preventing boiling over of the material.

What I claim is: I

l. A fumigator, comprising a cup, a support for the cup adapted to he placed within the same, a base adapted to form a closure for the cup and having a marginal channel to receive the lower edge of the support and the upper edge of the cup and also adapted to receive sealing material.

- 2. A. i'umigator, cmnprising a cup to contain iumigating n'iaterial and provided with a concave bottom, a truncated. conical support adapted to he placed within the cup when out of use, a base adapted to retain fuel for heating the cup and contents and provided with a marginal concave channel to receive the lower edge of the support and the upper edge of the cup, and also adapted to contain sealing; material, and an' inturned edge to the base to secure the support and sealing material within the channel.

In testimony whereof I affix my signature in presence of two witnesses.

LUDWIG A. THIELE. Witnesses LUTHER V. MouixroN, MAE RANKIN. 

